Kaifei Tang
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View article: Highly-reflective facet-coated multi-wavelength DFB laser array with exact wavelength spacings
Highly-reflective facet-coated multi-wavelength DFB laser array with exact wavelength spacings Open
A distributed feedback (DFB) laser array of twenty wavelengths with highly reflective and anti-reflective (HR-AR) coated facets is both theoretically analyzed and experimentally validated. While the HR facet coating enhances high wall-plug…
View article: Photonic convolutional neural network with robustness against wavelength deviations
Photonic convolutional neural network with robustness against wavelength deviations Open
We experimentally explore the practicality of integrated multiwavelength laser arrays (MLAs) for photonic convolutional neural network (PCNN). MLAs represent excellent performance for PCNN, except for imperfect wavelength spacings due to f…
View article: Nd:YAG linearly polarized laser based on polarization eigenmodes
Nd:YAG linearly polarized laser based on polarization eigenmodes Open
In this paper, the frequency difference of the eigen polarization modes of the Nd:YAG crystal laser at different polarization ratios is experimentally studied, and to the best of our knowledge, the correlation between the frequency differe…
View article: Linear polarization emission of Yb:YAG laser via polarization mode frequency locking
Linear polarization emission of Yb:YAG laser via polarization mode frequency locking Open
Direct linear polarization emission from a diode-pumped Yb:YAG laser is realized by changing the intracavity loss anisotropy which is controlled by finely adjusting the resonator. A theoretical model describing the relationship between los…
View article: Self-polarization emission based on coherent combination of intracavity eigenmodes in Nd:YAG/Cr4+:YAG lasers
Self-polarization emission based on coherent combination of intracavity eigenmodes in Nd:YAG/Cr4+:YAG lasers Open
The behavior of self-polarization emission in Nd:Y3Al5O12(YAG)/Cr4+:YAG lasers has been proved in some cases. However, the degree and direction of polarization were often sensitive and unstable. We experimentally observed different beam pr…
View article: Coherent combination of two intracavity eigenmodes producing linearly polarized emission in an isotropic laser
Coherent combination of two intracavity eigenmodes producing linearly polarized emission in an isotropic laser Open
The behavior of directly linearly polarized emission was investigated in an isotropic Nd:YAG laser with a weakly anisotropic Fabry-Perot cavity. In order to explore the polarization mechanism, the intracavity eigenmodes were analyzed theor…